My wife and I have been T-Mobile customers for years. We wanted the iPhone 5 so I ordered two of them from Verizon (transferred our T-Mobile numbers) and got them today. My phone activated instantly with no issues. Her phone will *not* activate! Every time I try I get the following message: "Device unknown This iPhone is not recognized and cannot be activated for service. Please visit your nearest Apple Store for more information." Does anyone know why this is happening and what I should do about it?